Md. Code, Business Occupations and Professions § 9–301

(a) Except as otherwise provided in this title, an individual shall be licensed by the Board before the individual may practice landscape architecture in the State.

(b) This section does not apply to:

(1) an individual who practices landscape architecture while performing official duties as an employee of the federal government;

(2) an individual while practicing landscape architecture under the supervision of a licensed landscape architect, if the individual does not assume responsible charge of design or supervision; or

(3) an individual while practicing landscape architecture as an employee of a person who is authorized to practice landscape architecture, if the employee does not assume responsible charge of design or supervision.